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Line Systems Line Systems Inc. (RespOrg code HDS01) is a telecommunications provider offering integrated voice, data, cloud services, local exchange, domestic and international long distance, and internet services primarily to business customers in the … read more ↓
Transfer network
How toll free numbers move between Line Systems (HD) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; Line Systems is highlighted. Open the full interactive map →
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- Website: https://www.telesystem.us Domain since 2012 (14y)
- Phone: (610) 355-9700 via web search: cmac.ws
At a glance
#41 of 206 oldest
Inventory by NPA
Click any NPA for total pool inventory across the industry.
By status
- WORKING 6,351, 98.7%
- DISCONN 73, 1.1%
- TRANSIT 12, 0.2%
Inventory age buckets
- 1–3 months 10, 0.1%
- 3–12 months 201, 2.7%
- 1–2 years 238, 3.2%
- 2–5 years 433, 5.9%
- 5+ years 5,469, 74.6%
Ages are measured from each number's last change in the Somos registry, that's the most recent activation, transfer, or status move. Not necessarily the date this RespOrg originally acquired it.
Request a manual history review of a specific toll free number →
Trajectory
Show monthly numbers
| Month | Inventory | Acquired | Harvested | Lost | From spare | To spare |
|---|---|---|---|---|---|---|
| 2018-03 | 7,190 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 7,206 | 172 | 0 | 156 | 25 | 23 |
| 2018-09 | 7,350 | 244 | 3 | 100 | 90 | 6 |
| 2018-10 | 7,351 | 26 | 0 | 25 | 3 | 3 |
| 2018-11 | 7,589 | 267 | 0 | 29 | 89 | 2 |
| 2018-12 | 7,579 | 31 | 0 | 41 | 20 | 5 |
| 2019-01 | 7,620 | 98 | 0 | 57 | 6 | 16 |
| 2019-02 | 7,724 | 130 | 0 | 26 | 119 | 1 |
| 2019-03 | 9,597 | 1,969 | 0 | 96 | 1,898 | 47 |
| 2019-04 | 10,018 | 1,782 | 0 | 1,361 | 1,719 | 1,130 |
| 2019-05 | 9,954 | 32 | 0 | 96 | 14 | 46 |
| 2019-06 | 9,947 | 34 | 0 | 41 | 8 | 8 |
| 2019-08 | 9,375 | 154 | 0 | 726 | 33 | 557 |
| 2019-09 | 9,819 | 552 | 0 | 108 | 532 | 9 |
| 2019-10 | 9,663 | 62 | 0 | 218 | 10 | 6 |
| 2019-11 | 9,629 | 60 | 0 | 94 | 6 | 2 |
| 2019-12 | 10,382 | 838 | 0 | 85 | 5 | 0 |
| 2020-01 | 10,390 | 41 | 0 | 33 | 4 | 2 |
| 2020-02 | 10,362 | 64 | 0 | 92 | 3 | 1 |
| 2020-03 | 10,366 | 48 | 0 | 44 | 32 | 2 |
| 2020-04 | 10,362 | 31 | 0 | 35 | 18 | 15 |
| 2020-05 | 9,794 | 66 | 0 | 634 | 8 | 0 |
| 2020-06 | 9,651 | 38 | 0 | 181 | 23 | 0 |
| 2020-07 | 9,642 | 11 | 0 | 20 | 2 | 5 |
| 2020-08 | 9,627 | 14 | 0 | 29 | 2 | 3 |
| 2020-09 | 9,647 | 43 | 0 | 23 | 2 | 0 |
| 2020-10 | 9,557 | 26 | 0 | 116 | 14 | 1 |
| 2020-11 | 9,540 | 20 | 2 | 37 | 2 | 0 |
| 2020-12 | 9,517 | 21 | 0 | 44 | 5 | 1 |
| 2021-01 | 9,578 | 142 | 0 | 81 | 31 | 1 |
| 2021-02 | 9,559 | 23 | 0 | 42 | 6 | 1 |
| 2021-03 | 9,558 | 29 | 0 | 30 | 8 | 0 |
| 2021-04 | 9,632 | 98 | 0 | 24 | 68 | 0 |
| 2021-05 | 9,591 | 25 | 0 | 66 | 1 | 1 |
| 2022-05 | 9,113 | 373 | 1 | 851 | 59 | 82 |
| 2022-06 | 9,104 | 16 | 0 | 25 | 3 | 2 |
| 2022-07 | 9,054 | 15 | 0 | 65 | 2 | 0 |
| 2022-08 | 9,038 | 13 | 0 | 29 | 4 | 0 |
| 2022-09 | 9,007 | 45 | 0 | 76 | 21 | 0 |
| 2022-10 | 8,995 | 12 | 0 | 24 | 0 | 3 |
| 2022-11 | 9,033 | 87 | 0 | 49 | 62 | 18 |
| 2022-12 | 9,079 | 149 | 0 | 103 | 145 | 37 |
| 2023-01 | 9,038 | 29 | 0 | 70 | 2 | 48 |
| 2023-02 | 9,035 | 16 | 0 | 19 | 1 | 0 |
| 2023-03 | 9,030 | 9 | 0 | 14 | 3 | 0 |
| 2023-04 | 9,202 | 207 | 0 | 35 | 0 | 1 |
| 2023-05 | 9,182 | 19 | 0 | 39 | 16 | 0 |
| 2023-06 | 9,129 | 21 | 0 | 74 | 3 | 0 |
| 2023-07 | 9,054 | 420 | 0 | 495 | 54 | 104 |
| 2023-08 | 9,080 | 549 | 0 | 523 | 107 | 57 |
| 2023-09 | 9,008 | 10 | 0 | 82 | 4 | 0 |
| 2023-10 | 9,014 | 21 | 0 | 15 | 17 | 1 |
| 2023-11 | 8,979 | 8 | 0 | 43 | 4 | 1 |
| 2023-12 | 8,324 | 88 | 2 | 743 | 30 | 40 |
| 2024-02 | 8,820 | 567 | 4 | 71 | 34 | 26 |
| 2024-03 | 8,790 | 6 | 0 | 36 | 1 | 0 |
| 2024-04 | 8,779 | 9 | 0 | 20 | 5 | 0 |
| 2024-05 | 8,734 | 6 | 0 | 51 | 4 | 0 |
| 2024-06 | 8,579 | 9 | 1 | 164 | 1 | 0 |
| 2024-07 | 8,554 | 4 | 0 | 29 | 3 | 0 |
| 2024-08 | 8,523 | 7 | 0 | 38 | 1 | 0 |
| 2024-09 | 8,489 | 3 | 0 | 37 | 2 | 0 |
| 2024-10 | 8,450 | 14 | 0 | 53 | 3 | 0 |
| 2024-11 | 8,409 | 5 | 0 | 46 | 5 | 0 |
| 2024-12 | 8,388 | 6 | 0 | 27 | 2 | 0 |
| 2025-01 | 8,201 | 7 | 0 | 194 | 5 | 0 |
| 2025-02 | 8,127 | 4 | 0 | 78 | 4 | 0 |
| 2025-03 | 8,127 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 8,049 | 12 | 0 | 90 | 0 | 0 |
| 2025-05 | 8,051 | 39 | 0 | 37 | 0 | 0 |
| 2025-06 | 8,040 | 6 | 0 | 17 | 0 | 0 |
| 2025-07 | 7,955 | 20 | 0 | 105 | 0 | 0 |
| 2025-08 | 8,025 | 91 | 0 | 21 | 2 | 0 |
| 2025-09 | 8,059 | 67 | 0 | 33 | 22 | 0 |
| 2025-10 | 8,031 | 17 | 0 | 45 | 10 | 0 |
| 2025-11 | 7,557 | 0 | 0 | 474 | 0 | 0 |
| 2025-12 | 7,550 | 19 | 0 | 26 | 1 | 0 |
| 2026-01 | 7,454 | 2 | 0 | 98 | 1 | 0 |
| 2026-02 | 7,436 | 2 | 0 | 20 | 1 | 0 |
| 2026-03 | 7,426 | 5 | 0 | 15 | 0 | 0 |
| 2026-04 | 6,843 | 1 | 0 | 584 | 0 | 0 |
| 2026-05 | 6,812 | 2 | 0 | 33 | 0 | 0 |
| 2026-06 | 6,450 | 6 | 0 | 368 | 1 | 0 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 14,310.0 |
| Harvested from disconnect pool | 39.0 |
| First assigned from spare pool | 16,353.0 |
| Reactivated own disconnects | 966.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 21,856.0 |
| Standard disconnect aging process (3+ months in DISC) | 2,930 |
| Abbreviated disconnect period (1–2 months in DISC) | 941 |
| Released directly to spare pool | 9,256.0 |
Of the 3,871 disconnect episodes this RespOrg has sent through aging, 24% were abbreviated (1–2 snapshots in DISC status). This RespOrg lets most numbers age the full 3–4 months before release, normal pattern.
Summary
Line Systems may have been acquired by Telesystem, an affiliate or Buckeye Broadband and subsidiary of BCI. The contact email has the domain of Telesystem.us although their addresses are different. Their category is a little unclear but I'll call them a regional phone company.
About Line Systems
Line Systems Inc. (RespOrg code HDS01) is a telecommunications provider offering integrated voice, data, cloud services, local exchange, domestic and international long distance, and internet services primarily to business customers in the mid-Atlantic U.S.[1][2][4] It was established in 2000 and acquired by Block Communications Inc. in 2014; it operates as a private company headquartered at 1645 W Chester Pike, West Chester, PA 19382.[1][2][4] No specific employee count or revenue data is available from sources.
Affiliations: Acquired by Block Communications Inc. in 2014; also referenced as Block Line Systems L.L.C.[2][4]
Toll free / RespOrg activity: No specific news or details found regarding toll-free or RespOrg activity.
AI-generated summary (confidence: medium), last updated 2026-04-30. Verify against primary sources before quoting.
Top vanity holdings
Recent news (1)
-
Block Communications, Inc. has acquired Line Systems, Inc 2014-11-24
Block Communications, Inc. has acquired Line Systems, Inc., a premier voice, data and cloud services company based in West Chester, PA that serves business customers primarily in the mid-Atlantic U.S. The acquisition was facilitated by W.G. Nielsen & Co., which acted as financial advisor to Line Systems, Inc. in the sale.
Contact-form message
with a customer of Line Systems (Telesystem)